Counter Input Applications; Counting Edges - National Instruments X Series User Manual

Table 7-1. Counter Timing Measurements (Continued)
Measurement
Buffered Frequency
Buffered Period
Buffered Position
Buffered Two-Signal Edge Separation

Counter Input Applications

The following sections list the various counter input applications available on X Series devices:
•

Counting Edges

• Pulse-Width Measurement
• Pulse Measurement
• Semi-Period Measurement
• Frequency Measurement
• Period Measurement
• Position Measurement
• Two-Signal Edge-Separation Measurement
Counting Edges
In edge counting applications, the counter counts edges on its Source after the counter is armed.
You can configure the counter to count rising or falling edges on its Source input. You can also
control the direction of counting (up or down), as described in the
Counting section. The counter values can be read on demand or with a sample clock.
Refer to the following sections for more information about X Series edge counting options:
• Single Point (On-Demand) Edge Counting
• Buffered (Sample Clock) Edge Counting
Implicit Timing
Support
Yes
Yes
No
Yes
Controlling the Direction of
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X Series User Manual
Sample Clocked
Timing Support
Yes
Yes
Yes
Yes